Has anyone playing Mosaic on a mac found that it immediately crashes after last week's upgrade?

I just got the DLC, but it doesn't show the puzzle pieces on Linux. On Windows it works fine however. I tried to reinstall and to check the cache, but the new puzzles don't work :(

Completed first 2 tales, but the third won't unlock?

I like hard difficulty and I'd like to not repeat puzzles just for the sake of easier achievements. Please implement an automatic grant of easier difficulty-tied achievements for higher ones.

How soon will you add any? You do plan on doing so, right?